Not denying kernal level anticheat is essentially malware but for games that require it you have no choice, even running them on virtual machines doesn’t work in some instances. The nvidia performance has improved but is still a decent difference depending on the games.

Considering most mmos don’t support Linux, as well as some games anticheat breaking seemingly randomly on updates, on top of the better performance for Nvidia gpus on windows is enough reason for a lot of people who game to stay with windows